Accessing COGs from Azure Blob Storage

[aliasmrchips]

Is there any particular reason that urls of the form az://... don't work, while /vsiaz/... works just fine? For example, using the cog/viewer endpoint?

[vincentsarago]

I'm pretty sure you are hitting this rasterio/rasterio#1906 (comment)

az:// was introduced in Rasterio 1.2 so if you are using Rasterio 1.1.8 you have to use either the https://blob or /vsiaz form. For private object, you'll need to have Rasterio 1.2.1

Note:
We are recommending to use Rasterio 1.1.8 👇

titiler/Dockerfile

Lines 9 to 11 in b5bcb0f

	# rasterio 1.2.0 wheels are built using GDAL 3.2 and PROJ 7 which we found having a
	# performance downgrade: https://github.com/developmentseed/titiler/discussions/216
	RUN pip install -e /app/. rasterio==1.1.8 --no-cache-dir

[aliasmrchips]

Ah! I saw the warning, so I should have taken that into account when I investigated.